Ecology Unit Review- Biology

Front

What happens to the stability of a food web if a top predator, like a hawk, is removed?

Back

The food web becomes less stable.

Front

Which organism's removal would have the largest impact on an ecosystem?

Back

The mouse.

Front

What is the primary purpose of scientific experiments?

Back

To prove or disprove a hypothesis.

Front

Describe the energy pyramid and the energy transfer between levels.

Back

Producers are at the bottom, followed by primary, secondary, and tertiary consumers. 10% of energy is transferred up each level, while 90% is used for heat or life processes.

Front

Which organisms have the most energy in an ecosystem?

Back

Producers.

Front

Which organisms have the least energy in an ecosystem?

Back

Tertiary consumers.

Front

Define 'producers' in an ecosystem.

Back

Organisms that produce their own food, typically through photosynthesis, such as plants.

Front

What are primary consumers?

Back

Herbivores that eat producers, such as rabbits and deer.

Front

What role do secondary consumers play in an ecosystem?

Back

They are carnivores that eat primary consumers.

Front

What are tertiary consumers?

Back

Top predators that eat secondary consumers, such as hawks and wolves.